Pipe joints or couplings – Irrigation type
Patent
1985-04-05
1986-12-02
Tanner, Harry
Pipe joints or couplings
Irrigation type
239732, B05B 1500
Patent
active
046259970
ABSTRACT:
A wheeled carriage comprises a frame member, two independently swivelling ground-engaging wheels mounted spaced apart below the frame member, and at least one pipe support member mounted below the frame member for pivotting about a substantially horizontal axis transverse a notional line joining the swivel axes of the wheels. The pipe support member is adapted to support a pipe between the wheels. The carriages are used to form a pipe train comprising a series of connected pipe sections supported by a plurality of wheeled carriages connected together in pairs by pivotal link bars bridging the frame members of connected pairs of carriages, the pipe sections being flexibly connected together between each connected pair of carriages.
REFERENCES:
patent: 288222 (1883-11-01), Flad
patent: 664240 (1900-12-01), Doehring
patent: 2860008 (1958-11-01), Jacoby
patent: 2889993 (1959-06-01), Willetts et al.
patent: 3057559 (1962-10-01), Ingram et al.
patent: 4542594 (1985-09-01), McLaughlin
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